[U-Boot] NAND: bad block in whole chip

[Darrik Spaude]

When I had discovered that my NAND flash had all bad blocks, I found a
patch to dump the NAND blocks (which I think you had said you did). What
I found in my case was that on one board 8 data lines were disconnected
and on another one of the 0 ohm resistors was faulty (so one bit was
always read as 0).

Might you have a hardware problem with your NAND? Who is the
manufacturer of the NAND chip, what is its part number, and does u-boot
have that part and its ID listed as a supported device?

Darrik

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Now i got all NAND stuffs from u-boot-1.3.4, including common/cmd_nand.c
and drivers/mtd/nand/*, but still the same problem.

Other components of u-boot can influence NAND behavior?

I saw some people with similar problem using "nand scrub", but im little
bit afraid with this command...

Another thing i notice: when reseting the board without turning off
power, NAND is not found.